A safety ventilation device for coal mining

Abstract

The application relates to the technical field of mine ventilation, and discloses a coal mining safety ventilation device, which comprises a ventilation pipe and further comprises: a dust removal assembly arranged in the ventilation pipe and located at an initial contact end in the wind flow direction, wherein the outer wall of the ventilation pipe is symmetrically provided with a dust collection air duct on one side close to the dust removal assembly; when the wind flows through the dust removal assembly, the dust removal assembly guides the intercepted dust to one side of the dust collection air duct, and when the dust reaches a preset amount, the dust is transported into the dust collection air duct through the flow of the wind; a dehumidification assembly arranged in the ventilation pipe and located at a middle contact end in the wind flow direction, wherein the dehumidification assembly comprises a water absorption part and a water discharge part; the water absorption part is located at an upper position of the ventilation pipe, and the water discharge part is located at a lower position of the ventilation pipe; the application can intercept dust, reduce the resistance of the wind, collect the dust by using the flow of the wind, and avoid the secondary dust raising and backflow of the dust.

Description

Technical Field

[0001] This invention relates to the field of mine ventilation technology, specifically a safety ventilation device for coal mining. Background Technology

[0002] As a major energy source, coal mining generates a large amount of dust and water vapor. The working environment in coal mines is harsh. High concentrations of dust not only endanger workers' occupational health and easily cause pneumoconiosis, but also pose an explosion hazard, seriously threatening safe production in the mine. At the same time, the high humidity in the underground air can lead to equipment corrosion, short circuits, and deteriorate the working environment. Therefore, ventilation systems are key equipment to ensure safe production and occupational health in coal mines.

[0003] The core functions of a coal mine ventilation system are to supply fresh air, expel toxic gases such as methane / coal dust, and regulate underground temperature and humidity. It mainly includes two basic ventilation methods: intake (forced intake) and exhaust (negative pressure). The decision to implement these methods must be made based on the actual conditions of the mine, such as geological conditions, methane levels, mining depth, and production capacity. Among them, the negative pressure ventilation system has a wider ventilation coverage, stronger negative pressure adsorption effect, and better long-distance air volume guarantee capability than the forced intake system. It can also quickly extract smoke and harmful gases in the event of a fire or explosion. It is often used in mines with high methane levels, deep burial, long roadways, large production capacity, high risk of coal dust explosion, and large goaf areas.

[0004] Currently, ventilation duct systems typically employ filter screens or dust removal equipment to intercept dust during operation, supplemented by dehumidifying materials to absorb moisture. However, during operation, dust accumulates in large quantities on the windward side, causing a sharp increase in ventilation resistance. This necessitates frequent shutdowns for manual cleaning or replacement, affecting continuous operation. Some automatic dust removal devices use vibration or back-blowing methods, but these suffer from high energy consumption, complex structures, and incomplete dust removal. Furthermore, the removed dust is prone to re-entrainment within the duct, causing secondary pollution. In addition, conventional dust removal structures directly discharge dust into the dust collection box, lacking effective airflow guidance, resulting in a large amount of dust-laden gas flowing back into the main ventilation duct during the dust removal process. Summary of the Invention

[0005] This invention provides a safety ventilation device for coal mines. Through a dust removal component, the device can intercept and guide dust during ventilation, reduce wind resistance, and collect dust by utilizing the direction of wind flow, thus preventing dust backflow during the dust discharge process. This solves the problems of high ventilation resistance and easy dust backflow mentioned in the background art.

[0006] This invention provides the following technical solution: A safety ventilation device for coal mine mining includes a ventilation duct and further includes: a dust removal component disposed inside the ventilation duct at the initial contact end in the airflow direction; a dust collection duct symmetrically arranged on the outer wall of the ventilation duct near the dust removal component; wherein, when airflow passes through the dust removal component, the dust removal component guides the intercepted dust to one side of the dust collection duct, and when the dust reaches a preset amount, the dust is transported into the dust collection duct by the airflow; and a dehumidification component disposed inside the ventilation duct at the middle contact end in the airflow direction; the dehumidification component includes a water absorption section and a water drainage section; the water absorption section is located at the upper part of the ventilation duct, and the water drainage section is located at the lower part of the ventilation duct; wherein, when the dust removal component discharges dust, the water drainage section drains water, and when the water absorption section reaches a preset amount, the dust removal component discharges dust.

[0007] As a preferred embodiment of the present invention, the dust removal assembly includes a tapered filter plate, with the tapered end of the filter plate close to the initial end of the reverse airflow. The inner wall of the ventilation pipe is symmetrically provided with grooves, and a compression rod and a spring are fixedly connected inside the grooves. The ends of the compression rod and the spring are connected to sliders, and the sliders are connected to the ends of the filter plates. Elastic protrusions are provided between the grooves and the sliders. When the pressure between the two sets of elastic protrusions reaches a certain value, one set of elastic protrusions will pass over the other elastic protrusion.

[0008] As a preferred embodiment of the present invention, the invention further includes a diversion port on the side wall of the ventilation duct, the diversion port being connected to the windward side of the filter plate and the dust collection duct, a sealing plate being hinged inside the diversion port, a spring sheet being connected between the sealing plate and the side wall of the ventilation duct, a connecting plate being slidably fixedly connected to the side of the slider near the sealing plate, a limiting member being fixedly connected to the end of the connecting plate, the shape of the limiting member's cross-section matching the end of the sealing plate, and the limiting member being inclined on one side along the rotation direction of the sealing plate, wherein a receiving cavity is provided on the side wall of the ventilation duct, and the receiving cavity matching the limiting member.

[0009] As a preferred embodiment of the present invention, it further includes a dust baffle plate fixedly connected in the dust collection duct, and a return air port connected to one end of the dust collection duct is opened on the side wall of the ventilation duct. The return air port is located on the leeward side of the filter plate, and the dust baffle plate is located between the return air port and the diversion port.

[0010] As a preferred embodiment of the present invention, the water absorption part includes a dehumidifier disposed inside the ventilation duct. A sandwich panel is disposed on both sides of the dehumidifier. The sandwich panel is connected to the inner wall of the ventilation duct. The sandwich panel and the dehumidifier are interference-fitted. A positioning ring is fixedly connected to one side of the sandwich panel that is close to the other. The bottom portion of the dehumidifier extends to the bottom of the positioning ring. A guide plate is obliquely disposed between the windward side of the sandwich panel and the bottom of the ventilation duct. The top of the guide plate is close to the positioning ring. Through holes are uniformly disposed on the portion of the sandwich panel above the guide plate. A water storage cavity is formed between the guide plate and the sandwich panel.

[0011] As a preferred embodiment of the present invention, the drainage section includes multiple sets of top rods and pressure rods fixedly connected to the bottom of the ventilation pipe. The top rods and pressure rods are located between two sets of sandwich panels, and the top rods and pressure rods are spaced apart. A support plate is provided at the top of the top rod, and the top of the pressure rod abuts against the bottom of the dehumidifying component through a movable plate. The top rods and pressure rods are connected by a pipe, which is laid along the side wall of the ventilation pipe. A drain outlet is provided on the side of the sandwich panel near the guide plate, and the drain outlet is connected to the water storage chamber.

[0012] As a preferred embodiment of the present invention, it further includes a wedge-shaped mounting plate connected to the inner wall of the ventilation duct. The wedge-shaped mounting plate is located on the windward side of the filter plate. The side of the wedge-shaped mounting plate away from the filter plate is inclined, and the inclination direction is the same as the airflow direction. A push rod is connected to the side of the wedge-shaped mounting plate near the filter plate. The push rod and the pressure rod are connected by a pipe, and the pipe is laid along the side wall of the ventilation duct.

[0013] As a preferred embodiment of the present invention, it further includes a motor structure, which includes a driving component and a protective component. The protective component is connected to the inner wall of the ventilation duct through a plate-like structure. The output end of the driving component is connected to a fan blade. A cooling component is provided on the side of the ventilation duct near the motor structure. Multiple sets of heat-conducting plates are connected between the cooling component and the protective component.

[0014] As a preferred embodiment of the present invention, it further includes a drain pipe, one end of which is connected to a water storage chamber and the other end of which is connected to a condensate collection device, wherein the drain pipe is distributed in an "S" shape at the bottom of the cooling component.

[0015] As a preferred embodiment of the present invention, it further includes an air inlet and an air outlet, wherein the air inlet is located at the air inlet end of the ventilation pipe and the air outlet is located at the air outlet end of the ventilation pipe, and a flange is provided at both the air inlet and the air outlet.

[0016] Compared with the prior art, the present invention provides a safety ventilation device for coal mine mining, which has the following beneficial effects: 1. In this coal mine safety ventilation device, the dust removal components can intercept dust while reducing wind resistance, preventing dust from accumulating on the windward side. At the same time, the flow of air is used to collect dust, enabling continuous operation of the ventilation equipment and preventing secondary dust generation and backflow.

[0017] 2. In this coal mine safety ventilation device, the dust removal component and the dehumidification component work together to promptly discharge the water accumulated in the dehumidification component, ensuring the dehumidification effect of the air. During the dehumidification process, the dust removal component works together to discharge the water. While ensuring efficient dust removal and dehumidification, the frequency of maintenance and operating energy consumption are reduced, and the level of system automation is improved.

[0018] The parts of this device not described herein are the same as or can be implemented using existing technologies. This invention can intercept dust while reducing wind resistance and using the flow of wind to collect dust, thus avoiding secondary dust generation and backflow. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.

[0020] Figure 1 This is a 3D physical image of the present invention; Figure 2 This is a first three-dimensional schematic diagram of the present invention; Figure 3 This is a second perspective view of the present invention; Figure 4 This is a schematic diagram of a first partial cross-sectional structure of the ventilation duct in this invention; Figure 5 This is a schematic diagram of a second partial cross-sectional structure of the ventilation duct in this invention; Figure 6 This is a top cross-sectional view of the ventilation duct and dust removal assembly in this invention. Figure 7 This is a side cross-sectional view of the ventilation duct and dehumidification assembly in this invention. Figure 8 This is a schematic diagram of the main cross-sectional structure of the ventilation duct and dehumidification component in this invention; Figure 9 For the present invention Figure 6 A schematic diagram of the structure of part A.

[0021] In the diagram: 1. Ventilation duct; 2. Air inlet; 3. Air outlet; 4. Motor structure; 5. Fan blade; 6. Cooling component; 7. Heat conduction plate; 8. Dust collection duct; 9. Dust collection box; 10. Dust removal assembly; 101. Slide groove; 102. Compression rod; 103. Spring; 104. Slider; 105. Elastic protrusion; 106. Filter plate; 107. Diverter port; 108. Sealing plate; 109. Spring; 1010. Connecting plate; 1011. Storage cavity; 1012. Limiting component; 1013. Wedge mounting plate; 1014. Push rod; 11. Return air outlet; 12. Dust baffle plate; 13. Sandwich panel; 14. Positioning ring; 15. Dehumidification component; 16. Guide plate; 17. Drain outlet; 18. Top rod; 19. Pressure rod; 20. Support plate; 21. Drain pipe. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Example: Reference Figures 1-9 This invention relates to the field of mine ventilation, providing a safety ventilation device for coal mining. It includes a ventilation pipe 1 and a dust collection assembly 10, disposed within the ventilation pipe 1 at the initial contact end in the airflow direction. A dust collection duct 8 is symmetrically arranged on the outer wall of the ventilation pipe 1 near the dust collection assembly 10. A dust collection box 9 is located at the bottom of the dust collection duct 8, and the dust collection box 9 is symmetrically drawer-shaped. When airflow passes through the dust collection assembly 10, the dust collection assembly 10 guides the intercepted dust to one side of the dust collection duct 8. When the dust reaches a preset amount, the dust is transported to the dust collection duct by the airflow. Inside the air duct 8, a dehumidification component is installed inside the ventilation pipe 1, located at the middle contact end in the airflow direction. The dehumidification component includes a water absorption section and a water drainage section. The water absorption section is located at the upper part of the ventilation pipe 1, and the water drainage section is located at the lower part of the ventilation pipe 1. When the dust removal component 10 discharges dust, the water drainage section discharges water. When the water absorption section reaches a preset amount, the dust removal component 10 discharges dust. It also includes an air inlet 2 and an air outlet 3. The air inlet 2 is located at the air inlet end of the ventilation pipe 1, and the air outlet 3 is located at the air outlet end of the ventilation pipe 1. Both the air inlet 2 and the air outlet 3 are equipped with flanges.

[0024] In this embodiment, the ventilation duct 1 is the main body of the entire device. The air enters from one end and exits from the other end. A dust removal component 10 is installed at the point where the air just enters to block the dust. Dust collection ducts 8 are symmetrically arranged on both sides of the ventilation duct 1. When the dust on the dust removal component 10 accumulates to a preset amount, the air itself blows the dust into the dust collection duct 8 for collection. A dehumidification component is installed in the middle of the ventilation duct 1, which includes two parts: water absorption at the top and water drainage at the bottom. When the dust removal component 10 starts to discharge dust, the drainage part drains water along with it. When the water absorption part is saturated with water to a preset amount, it triggers the dust removal component 10 to discharge dust. The two work in an alternating linkage relationship without manual intervention.

[0025] Reference Figure 2 , Figure 5 , Figure 6 and Figure 9 The dust removal assembly 10 includes a tapered filter plate 106, with the tapered end of the filter plate 106 close to the initial end of the reverse airflow. The inner wall of the ventilation pipe 1 is symmetrically provided with grooves 101. A compression rod 102 and a spring 103 are fixedly connected inside the grooves 101. The ends of the compression rod 102 and the spring 103 are connected to sliders 104. The sliders 104 are connected to the ends of the filter plate 106. Elastic protrusions 105 are provided between the grooves 101 and the sliders 104. When the pressure between the two sets of elastic protrusions 105 reaches a certain value, one set of elastic protrusions 105 will pass over the other elastic protrusion 105.

[0026] In this embodiment, a conical filter plate 106 is used for dust interception, with the tip of the cone facing the direction of the incoming wind. When the wind passes by, the dust is intercepted and slides obliquely along the cone surface, automatically gathering in the direction of the dust collection duct 8, thus preventing the dust from spreading evenly on the filter plate 106. The filter plate 106 is connected to two sliders 104 at both ends. The sliders 104 are installed in the grooves 101 on the inner wall of the ventilation duct 1. There is an elastic protrusion 105 between the slider 104 and the groove 101. In the initial state, the position of the filter plate 106 is limited to prevent the filter plate 106 from being damaged due to frequent shaking during operation. As the dust on the filter plate 106 increases, the thrust of the wind on the filter plate 106 will increase. When the pressure between the two elastic protrusions 105 increases to a certain value, one of the elastic protrusions 105 will pass over the other, triggering the discharge action to realize the discharge of dust.

[0027] Reference Figure 9It also includes a diversion port 107 on the side wall of the ventilation duct 1, which is connected to the windward side of the filter plate 106 and the dust collection duct 8. A sealing plate 108 is hinged inside the diversion port 107. A spring piece 109 is connected between the sealing plate 108 and the side wall of the ventilation duct 1. A connecting plate 1010 is slidably fixed to the side of the slider 104 near the sealing plate 108. A limiting member 1012 is fixedly connected to the end of the connecting plate 1010. The shape of the cross section of the limiting member 1012 matches the end of the sealing plate 108, and the limiting member 1012 is inclined on one side along the rotation direction of the sealing plate 108. A receiving cavity 1011 is opened on the side wall of the ventilation duct 1, and the receiving cavity 1011 matches the limiting member 1012.

[0028] In this embodiment, a diversion port 107 is opened on the side wall of the ventilation duct 1, facing the windward side of the filter plate 106, leading to the dust collection duct 8. In the initial state, the diversion port 107 is sealed by a sealing plate 108. The sealing plate 108 is connected by a hinge and can be rotated and opened. The spring piece 109 between the sealing plate 108 and the duct wall is used to limit the sealing plate 108 to prevent its exhaust volume from being too large. When the slider 104 moves, the limiting member 1012 moves synchronously under the action of the connecting plate 1010. When the limiting member 1012 disengages from the end of the sealing plate 108, the sealing plate 108 will rotate towards the dust collection duct 8 under the action of wind force, and then the filter... Dust at the corners of plate 106 will enter the dust collection duct 8 under the action of wind. After the dust is discharged, the thrust on filter plate 106 decreases, and slider 104 is reset under the action of spring 103. It should be explained that because the dust discharge action is fast, a large amount of dust will separate from filter plate 106 at the moment the sealing plate 108 opens, which will cause spring 103 to release a large elastic force instantly, so that the two sets of elastic protrusions 105 are reset. Moreover, the wind resistance on filter plate 106 is reduced, and the thrust on sealing plate 108 is reduced. Through the limiting member 1012 and spring 109, sealing plate 108 can reseal the diversion port 107.

[0029] Reference Figure 6 It also includes a dust baffle plate 12 fixedly connected in the dust collection duct 8. The side wall of the ventilation pipe 1 is provided with a return air port 11 connected to one end of the dust collection duct 8. The return air port 11 is located on the leeward side of the filter plate 106, and the dust baffle plate 12 is located between the return air port 11 and the diversion port 107.

[0030] In this embodiment, to ensure more thorough dust removal, a dust baffle 12 is installed in the dust collection duct 8, and a return air port 11 is opened on the side wall of the ventilation pipe 1, located on the leeward side of the filter plate 106, that is, the clean side of the filter plate 106. The dust baffle 12 is located between the return air port 11 and the diversion port 107. When the wind carries dust into the dust collection duct 8, the heavier dust particles will directly hit the dust baffle 12 and fall into the dust collection box 9, while the lighter dust may be adsorbed on the dust baffle 12. The clean air can flow back to the ventilation pipe 1 from the return air port 11 without causing airflow loss. Furthermore, after the sealing plate 108 re-seals the diversion port 107, a small amount of air located on the leeward side of the filter plate 106 will back-blow the dust baffle 12 through the return air port 11, thereby ensuring the cleanliness of the dust baffle 12 and facilitating the subsequent dust blocking and return air effects.

[0031] Reference Figure 7 The water absorption part includes a dehumidifier 15 disposed inside the ventilation pipe 1. A sandwich panel 13 is disposed on both sides of the dehumidifier 15. The sandwich panel 13 is connected to the inner wall of the ventilation pipe 1. The sandwich panel 13 and the dehumidifier 15 are interference-fitted. A positioning ring 14 is fixedly connected to the side of the sandwich panel 13 that is close to each other. The bottom part of the dehumidifier 15 extends to the bottom of the positioning ring 14. A guide plate 16 is inclinedly disposed between the windward side of the sandwich panel 13 and the bottom of the ventilation pipe 1. The top of the guide plate 16 is close to the positioning ring 14. The part of the sandwich panel 13 above the guide plate 16 is evenly provided with through holes. A water storage cavity is formed between the guide plate 16 and the sandwich panel 13.

[0032] In this embodiment, it should be explained that the dehumidifier 15 is made of a highly absorbent, elastic, and reversible material, such as a hydrophilic polymer sponge. Hydrogels (such as polyacrylamide, polyvinyl alcohol, or sodium alginate) are filled or polymerized into a porous, elastic sponge skeleton (such as polyurethane sponge or cellulose sponge). The sponge provides elastic support and water delivery channels. The hydrogel is responsible for strongly absorbing moisture from the air, forming liquid water stored in a three-dimensional network. When squeezed, water flows out from the gel network, and the volume of the dehumidifier 15 expands during water absorption. The upper part of the dehumidifier 15 only participates in the absorption of airborne moisture. In terms of water absorption, the lower part only participates in water discharge. Specifically, since the dehumidifier 15 is placed vertically, as the amount of water absorbed by the dehumidifier 15 increases, the absorbed water will gradually flow downwards under the action of gravity, thus forming different water absorption efficiencies in the upper and lower parts of the dehumidifier 15. The positioning ring 14 on the inner side of the sandwich panel 13 will position the dehumidifier 15, so that when the lower part of the dehumidifier 15 is squeezed, it will not have too much impact on the water absorption effect of the upper part. After being squeezed, the water at the bottom of the dehumidifier 15 enters the water storage chamber through the drain hole 17, avoiding the squeezed water from affecting the water absorption effect of the dehumidifier 15.

[0033] Reference Figure 8The drainage section includes multiple sets of top rods 18 and pressure rods 19 fixedly connected to the bottom of the ventilation pipe 1. The top rods 18 and pressure rods 19 are located between two sets of sandwich panels 13, and the top rods 18 and pressure rods 19 are spaced apart. The top of the top rod 18 is provided with a support plate 20, and the top of the pressure rod 19 abuts against the bottom of the dehumidification component 15 through a movable plate. The top rod 18 and the compression rod 102 are connected by a pipe, which is laid along the side wall of the ventilation pipe 1. A drain outlet 17 is opened on the side of the sandwich panel 13 near the guide plate 16, and the drain outlet 17 is connected to the water storage chamber.

[0034] In this embodiment, the top of the pressure rod 19 is pressed against the bottom of the dehumidifying component 15 by a movable plate. The top rod 18 and the compression rod 102 are connected by a pipe laid along the pipe wall. When the compression rod 102 moves, the pressure is transmitted to the top rod 18 through the pipe. The top rod 18 pushes upward to squeeze out the water in the lower part of the dehumidifying component 15 and discharge it into the water storage chamber through the drain outlet.

[0035] Reference Figures 8-9 It also includes a wedge-shaped mounting plate 1013 connected to the inner wall of the ventilation duct 1. The wedge-shaped mounting plate 1013 is located on the windward side of the filter plate 106. The side of the wedge-shaped mounting plate 1013 away from the filter plate 106 is inclined, and the inclination direction is the same as the airflow direction. A push rod 1014 is connected to the side of the wedge-shaped mounting plate 1013 near the filter plate 106. The push rod 1014 and the pressure rod 19 are connected by a pipe, and the pipe is laid along the side wall of the ventilation duct 1.

[0036] In this embodiment, the wedge-shaped mounting plate 1013 guides the airflow, allowing it to pass smoothly. Due to the large water content at the bottom of the dehumidifier 15 under the influence of gravity, the expansion volume of the bottom of the dehumidifier 15 is large. At the same time, because the sidewall of the dehumidifier 15 is blocked by the sandwich plate 13 and the top is blocked by the positioning ring 14, most of the expansion volume extends downward, thereby squeezing the pressure rod 19. The pressure is transmitted to the push rod 1014 through the pipe to simulate the accumulation of dust on the filter plate 106, thereby accelerating the opening time of the sealing plate 108, making it easier to squeeze out the water in the lower part of the dehumidifier 15, while ensuring the dust interception effect of the filter plate 106 and reducing the wind resistance.

[0037] Reference Figures 1-4 It also includes a motor structure 4, which includes a drive component and a protective component. The protective component is connected to the inner wall of the ventilation pipe 1 through a plate-like structure. The output end of the drive component is connected to a fan blade 5. A cooling component 6 is provided on the side of the ventilation pipe 1 near the motor structure 4. Multiple sets of heat-conducting plates 7 are connected between the cooling component 6 and the protective component. It also includes a drain pipe 21. One end of the drain pipe 21 is connected to the water storage chamber, and the other end of the drain pipe 21 is connected to the condensate collection device. The drain pipe 21 is distributed in an "S" shape at the bottom of the cooling component 6.

[0038] In this embodiment, the cooling component 6 is a conventional method in the prior art, so it will not be described in detail. There are multiple sets of heat-conducting plates 7 between the cooling component 6 and the protective component, which are used to conduct heat from the motor to ensure the stability of the motor structure 4 during operation. In addition, one end of the drain pipe 21 is connected to the water storage chamber, and the other end is connected to the condensate collection device. When the collected condensate flows in the drain pipe 21, it flows in an "S" shape at the bottom of the cooling component 6. In this way, the discharged cold water can first cool the cooling component 6 to reduce its temperature, and at the same time, the waste heat can be recovered to achieve energy cascade utilization, which meets the energy conservation requirements of coal mines.

[0039] Components not described in detail in this article are existing technologies.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A safety ventilation device for coal mine mining, comprising a ventilation pipe (1), characterized in that, Also includes: The dust removal component (10) is installed inside the ventilation pipe (1) at the initial contact end in the direction of air flow. The outer side wall of the ventilation pipe (1) near the dust removal component (10) is symmetrically provided with dust collection ducts (8). When the airflow passes through the dust removal component (10), the dust removal component (10) will guide the intercepted dust to one side of the dust collection duct (8), and when the dust reaches a preset amount, the dust will be transported into the dust collection duct (8) by the flow of air. A dehumidification component is disposed inside the ventilation duct (1) at the middle contact end in the airflow direction. The dehumidification component includes a water absorption part and a water drainage part. The water absorption part is located at the upper part of the ventilation duct (1), and the water drainage part is located at the lower part of the ventilation duct (1). When the dust removal component (10) discharges dust, the drainage section drains water; when the water absorption section absorbs water to a preset amount, the dust removal component (10) discharges dust. The dust removal assembly (10) includes a tapered filter plate (106), with the tapered end of the filter plate (106) close to the initial end of the reverse airflow. The inner wall of the ventilation pipe (1) is symmetrically provided with grooves (101). A compression rod (102) and a spring (103) are fixedly connected inside the grooves (101). A slider (104) is connected to the ends of the compression rod (102) and the spring (103). The slider (104) is connected to the end of the filter plate (106). Among them, elastic protrusions (105) are provided between the slide groove (101) and the slider (104). When the pressure between the two sets of elastic protrusions (105) reaches a certain value, one set of elastic protrusions (105) will pass over the other elastic protrusion (105). The drainage section includes multiple sets of top rods (18) and pressure rods (19) fixedly connected to the bottom of the ventilation pipe (1). The top rods (18) and pressure rods (19) are located between two sets of sandwich panels (13), and the top rods (18) and pressure rods (19) are spaced apart. The top of the top rod (18) is provided with a support plate (20), and the top of the pressure rod (19) abuts against the bottom of the dehumidifying component (15) through a movable plate. The top rod (18) and the compression rod (102) are connected by a pipe, which is laid along the side wall of the ventilation pipe (1). The sandwich panel (13) has a drain outlet (17) on the side near the guide plate (16), and the drain outlet (17) is connected to the water storage chamber.

2. The safety ventilation device for coal mine mining according to claim 1, characterized in that, It also includes a diversion port (107) on the side wall of the ventilation duct (1), the diversion port (107) being connected to the windward side of the filter plate (106) and the dust collection duct (8), a sealing plate (108) being hinged inside the diversion port (107), a spring piece (109) being connected between the sealing plate (108) and the side wall of the ventilation duct (1), a connecting plate (1010) being slidably and fixedly connected to the side of the slider (104) near the sealing plate (108), a limiting member (1012) being fixedly connected to the end of the connecting plate (1010), the shape of the cross section of the limiting member (1012) matching the end of the sealing plate (108), and the limiting member (1012) being inclined on one side along the rotation direction of the sealing plate (108). The ventilation pipe (1) has a storage cavity (1011) on its side wall, and the storage cavity (1011) is matched with the limiting member (1012).

3. A safety ventilation device for coal mine mining according to claim 2, characterized in that, It also includes a dust baffle (12) fixedly connected in the dust collection duct (8), and the ventilation pipe (1) has a return air port (11) connected to one end of the dust collection duct (8) on its side wall. The return air port (11) is located on the leeward side of the filter plate (106), and the dust baffle (12) is located between the return air port (11) and the diversion port (107).

4. A safety ventilation device for coal mine mining according to claim 1, characterized in that, The water-absorbing part includes a dehumidifying component (15) disposed inside the ventilation pipe (1). A sandwich panel (13) is disposed on both sides of the dehumidifying component (15). The sandwich panel (13) is connected to the inner wall of the ventilation pipe (1). The sandwich panel (13) and the dehumidifying component (15) are interference-fitted. A positioning ring (14) is fixedly connected to one side of the sandwich panels (13) that are close to each other. The bottom portion of the dehumidifying component (15) extends to the bottom of the positioning ring (14). Among them, a guide plate (16) is inclinedly arranged between the windward side of the sandwich panel (13) and the bottom of the ventilation pipe (1). The top of the guide plate (16) is close to the positioning ring (14). The part of the sandwich panel (13) above the guide plate (16) is uniformly provided with through holes. A water storage cavity is formed between the guide plate (16) and the sandwich panel (13).

5. A safety ventilation device for coal mine mining according to claim 4, characterized in that, It also includes a wedge-shaped mounting plate (1013) connected to the inner wall of the ventilation pipe (1). The wedge-shaped mounting plate (1013) is located on the windward side of the filter plate (106). The side of the wedge-shaped mounting plate (1013) away from the filter plate (106) is inclined, and the inclination direction is the same as the airflow direction. A push rod (1014) is connected to the side of the wedge-shaped mounting plate (1013) close to the filter plate (106). The push rod (1014) and the pressure rod (19) are connected by a pipe, which is laid along the side wall of the ventilation pipe (1).

6. A safety ventilation device for coal mine mining according to claim 4, characterized in that, It also includes a motor structure (4), which includes a drive component and a protective component. The protective component is connected to the inner wall of the ventilation pipe (1) through a plate-like structure. The output end of the drive component is connected to a fan blade (5). A cooling component (6) is provided on the side of the ventilation pipe (1) near the motor structure (4). Multiple sets of heat-conducting plates (7) are connected between the cooling component (6) and the protective component.

7. A safety ventilation device for coal mine mining according to claim 6, characterized in that, It also includes a drain pipe (21), one end of which is connected to the water storage chamber and the other end of which is connected to the condensate collection device. The drain pipe (21) is distributed in an "S" shape at the bottom of the cooling component (6).

8. A safety ventilation device for coal mine mining according to claim 1, characterized in that, It also includes an air inlet (2) and an air outlet (3), wherein the air inlet (2) is located at the air inlet end of the ventilation pipe (1) and the air outlet (3) is located at the air outlet end of the ventilation pipe (1), and a flange is provided at both the air inlet (2) and the air outlet (3).

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